Valve.



E. N. PAGELSEN.

VALVE.

APPLICATION FILED JAN.25, 1911.

1,000,435, Patented Aug. 15, 1911.

2 SHEETSSHEET 1.

it I l IHHIIIIIIIIIIH I E; N. PAGELSEN.

VALVE.

APPLIUATION FILED JAN. 25, 1911.

Patented Aug. 15, 1911.

2 SEEETSSHEET 2.

EDWARD N. PAGELSEN, OF DETROIT, MICHIGAN.

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Specification of Letters Patent. Patented Aug. 15, 1911.

Application filed January 25, 1911. Serial No. 604,530.

To all whom it may concern:

Be it known that I, EDWARD N. PAGELSEN,

- a citizen of the United States, and a resident of the city of Detroit, in the county of Wayne and State of Michigan, have invented a new and Improved Valve, of which the following is a specification.

.This invention relates to automatic means for governing the flow of liquids by their own temperatures, and its particularobject through one or a 'plurallty of plpes, accordis to provide means whereby the flow of liquids through or around. the radiator of an explosion engine is controlled.

In the accompanying drawings, Figure 1 is an elevation of the device with the cover removed. Fig. 2 'is. a central longitudinal section of the same on the line 22 of Fig. 1. Fig. 3"is a view of a modified form of controlling device, Fig. 4 is a view of a modified form of valve operating device. Fig. 5 is an elevation of the vah'e connected between a four-cylinder engine and its radiator. Fig. 6 is a section on the line 6 .6 of-Fig. j

Similar reference characters refer to like parts throughout the several. views.

Radiators for explosion ,engines are usually designed of sufficient size to keep the temperature of the circulating liquid sufficient-1y cool onthe warmest days. The result is, that often during cold weather, the circulating ,liquid passes to the engine a hundred degrees F. col, er than necessary.

- 9. large portion of the power.

Consequently, the-walls of the cylinders be come chilled, causing a failure to develop A theoretically perfect installation is one in which the radiator will always Supply'the circulating liquid to the engine at the same temperature, and in which the radiator will always receive the liquid from the engine at the same temperature. Practically, the temperature at' which the liquid passes to the radiator indicates whether the liquid passing to theiengine is too hot or too cold.

It Wlll readily be seen that when the liquid passing from the radiator to the cylinders is too cold, it would be desirable to pass a' sutfioient portion of the liquid from the cylinders around the radiator and mix the same with the cold liquid from the radiator to bring the whole to the desired tempera.

ture. My improved valve may be placed at 1, (Fig. 5) between the manifold pipe 2 of the cylinders 3 and'the radiator 4, to control the flow of liquid, permitting it to along with cold liquid from the radiator.

flow through the pipe5 to the top or the The system of piping, the construction-of the radiator and that of the engine form no 'part of this invention, which resides in the valve to control the flow of' liquid two shortpart-cylinders 11 and v12.ja hottom 13 and a top 14 secured in position by screws 15.. A connection '16 for the admission of the liquid may connect to a tube 10, while the two connections-17 and 18 at the "opposite end may connect totwo discharge pipes 5 and 7 respectively. Mounted on a pin 24 is a hub 20 having an arm 21 carrying a valve 22' adapted to close the openings to the connections 17 and 18, and having a mutilated gear 23. A bolt .19 is mounted centrally of the cylinder 11 and on it is mounted an arm 25 having a segment 26 at its free end'in engagement with the gear 23. r This segment is so formed that after the gear. has been turned fort-y five degrees either way from the position shown in Fig. 1, further movement is prevented although the segment may continue to swing until its endsengage the case.

The bottom of the ,case has a polygonal depression, concentric with the bolt 19, into which fits the hub 29 of the plate 30,'which plate has two lugs 31 and 32. An arm 33 is pivotally mounted on the bolt 19 and is normally held against the lug 31 by the strong spring 34 which is placed between the lug 32 and a lug 35 on this arm. Flanges 36 and 37 on this arm are spaced apart to admit the thermostat bar formed by the strips 38 and 39 of. metals having unequal expansions for equal changes of tempera-I ture, brass being preferred for the former and'steel for the latter. These strips are preferably electrically welded together.

The. screws 40 may be employed to hold one end pf the'thermostat in position, while one end of the strip 39 may be bent at 41 to form a sleeve to receive the pin 42. The free end of the thermostat is preferably slotted, as shown in Fig. 2, to receive the 70 The body of the valve is in the form of arm 25, which may be formed with a slot 43'to receive the pin 42.

Many changes in the construction and proportions of this device may be made by those skilled in the art without departing from the spirit of this invention. Instead of the mutilated gear and segment to operate the valve, the arm 25 may be formedstrips 53 and 54 are united and held between the flanges 5.5 and 56 on the plate 57 by the screws 58. The plate may be secured to the case by the bolt 59. Any desired form of arm 60 may connect to the valve. With this increased length of the actuating bar, the valve becomes more sensitive.

Referring to Figs. 1 and 2, and'considering the strip 38 to be of brass and the strip 39 of steel, it will be seen that so long as the liquid flowing through the valve remains at the proper temperature, the valve 22 will remain at rest. An increase of temperature will cause the thermostat to open and swing the valve farther across the opening to the connection 18, while a decrease in temperature will cause the valve to swing in the opposite direction. Whether the liquid entering at 16 will leave at 17 or 18 will therefore depend upon its temperature.

As the temperature may vary greatly from normal, as when the engine is at rest in an'unheated place in the winter, the thermostat might become strained-because of the segment engaging the wall of the case. To prevent this, the spring 34 may be placed between the lugs 32 and 35, which spring will yield before the thermostat bends at the edges of the flanges 36 and 37 Because of the screws 40 and the polygonal hub 29,0n the plate 30, the length of the thermostat and therefore. its rate can be carefully adjusted. Itwill also be apparent that the valve may be employed to regulate the mixture of two liquids of diflerenttemperatures entering through the pipes 5 and 7 and leaving through the connection 16.

Having now explained my construction,

What I claim as my invention and desire to secure by Letters Patentisz- 1. In a valve, the combination of a body having an opening at one end and a plu-.

rality of openings at the other end, a valve adapted to move to close either of the plurality of openings, a curved bar adapted to alter its curvature under varying temperatures, means connecting one endof the bar to said valve, a plate adjustably secured in said body, and a yieldably mounted clamp on said plate to which the other end of the bar is secured.

2. In a valve, the combination of a hollow body having inlet and outlet openings, a valve adapted to move across a plurality of said openings, a bar formed of two metals and so connected to said valve at one end that it will move said valve according to changes of the temperature of liquids pass ing through said body, and means for mounting the opposite end of the bar comprising a plate adjustably secured to said body, lugs on said plate, an arm movable between the lugs, a spring to normally hold said arm against one of the lugs, and jaws on said arm to engage the end of said bar.

3. In a valve, the combination of a hollow body having openings for the passage of liquids, a valve mounted within the body to control the flow of liquids through said openings, a circular bar formed of a layer of brass and a layer of steel united together, means to connect one. end of the bar to said valve, and means mounted within the body for securing the opposite end. of the bar comprising a plate adjustably secured to said body, lugs on said plate, an arm movable between the lugs, a spring to normally hold said arm against one of the lugs, and jaws on said arm to engage the end of said bar.

In testimony whereof I have signed this specification in the presence of two subscrib ing witnesses.

EDWARD N. PAGELSEN.

- Witnesses:

ELIZABETH M. BROWN, A. F. Wmoox. 

